The Skeptics Society & Skeptic magazine

In this lectures, based on his book Here on Earth, Tim Flannery presents a captivating and dramatic narrative about the origins of life and the history of our planet.

J. S. Snelson discusses how our biological immune system protects our bodies from an invasion of foreign agents and pathogens, and, in the context of the historical discovery and treatment of malaria, how our ideological immune system protects our minds from an invasion of foreign ideas and doctrines.